Premium
[NaCu(2,4‐HPdc)(2,4‐Pdc)] Mixed Metal–Organic Framework as a Heterogeneous Catalyst
Author(s) -
Larrea Edurne S.,
Fernández de Luis Roberto,
Orive Joseba,
Iglesias Marta,
Arriortua María I.
Publication year - 2015
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201500431
Subject(s) - chemistry , isostructural , catalysis , metal organic framework , triclinic crystal system , lewis acids and bases , thermal decomposition , transition metal , knoevenagel condensation , crystallography , pyridine , octahedron , medicinal chemistry , crystal structure , stereochemistry , organic chemistry , adsorption
The synthesis of a new mixed metal–organic framework (M′MOF) has been accomplished by the metalloligand approach. [NaCu(2,4‐HPdc)(2,4‐Pdc)] (2,4‐H 2 Pdc = pyridine‐2,4‐dicarboxylic acid) has been obtained from the hydrothermal reaction of the metalloligand [Cu(2,4‐HPdc) 2 (H 2 O) 2 ] NaOH, and a transition metal salt. [NaCu(2,4‐HPdc)(2,4‐Pdc)] is isostructural to [CuMn(2,4‐Pdc) 2 ] and crystallizes in the triclinic space group P $\bar {1}$ . The 3D structure is built up from [Cu(2,4‐HPdc) 2 (H 2 O) 2 ] metalloligands and [NaO 6 ] octahedra in a pcu α‐Po‐like uninodal six‐connected net. The compound is stable to 290 °C, and its crystal structure undergoes a 3 % volume expansion between room temperature and thermal decomposition. The unsaturated Cu II centers at the surface act as a heterogeneous Lewis acid catalyst for the cyanosilylation of aldehydes and Knoevenagel C–C bond‐forming reactions. The catalytic activity has been compared with those of other copper(II) porous metal–organic frameworks such as HKUST‐1 and MOF‐74.